126687979200 has 168 divisors, whose sum is σ = 417798786448. Its totient is φ = 33608171520.

The previous prime is 126687979199. The next prime is 126687979211. The reversal of 126687979200 is 2979786621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 858024 + ... + 994776.

Almost surely, 2^126687979200 is an apocalyptic number.

126687979200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126687979200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208899393224).

126687979200 is an abundant number, since it is smaller than the sum of its proper divisors (291110807248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126687979200 is a wasteful number, since it uses less digits than its factorization.

126687979200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136971 (or 136956 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 126687979200 in words is "one hundred twenty-six billion, six hundred eighty-seven million, nine hundred seventy-nine thousand, two hundred".